Well, maybe she isn't planning on telling him in the first place. Which means she might not trust him with that information. If she really loved him, and wanted him in her life, she would've told him about the baby as soon as she told you and her cousin.

This is a huge change, true. And your relationship might change. That doesn't necessarily mean it will change for the worse. You'll need to time your talk carefully; she's depending on you for support, and I wonder if she'll get more stressed knowing that her rock-solid anchor is scared, too. But that depends on the person, and I don't know enough about her to do more than speculate on that subject.

__________________

Be a good friend and help her ass out
BUT first, found out whos the daddy is

__________________

You have to ask yourself this:

Could you imagine your life without her?

Because if you can't, then accept her decision, ask her if she is planning on telling her family or the father/fathers family and tell her that you WILL e there for her, because if you do love her, and you do want to be with her you will accept her decision. Even if you don't want to be its father figure in life, you have to let her know that you will be there for her and her baby.

Couldn't have said it better myself.